Lower receiver



FIG. 1 is a top left front perspective view of a lower receiver;

FIG. 2 is a top left rear perspective view thereof;

FIG. 3 is a top right front perspective view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a front section view of the slot thereof, taken from line 5-5 in FIG. 4;

FIG. 6 is a top left front perspective section view of the slot thereof, taken from line 6-6 in FIG. 1;

FIG. 7 is a side section view thereof, taken from line 7-7 in FIG. 4;

FIG. 8 is a rear view thereof;

FIG. 9 is a left side view thereof;

FIG. 10 is a front view thereof; and,

FIG. 11 is a right side view thereof.

The dashed broken lines depicting portions of the lower receiver, the uneven broken lines showing boundaries of the claimed design, and the uneven broken lines indicating cross-sectional and enlarged views form no part of the claimed design. 

CLAIM The ornamental design for a lower receiver, as shown and described. 